i am sure your first three posts are in contravention of forum guidelines

however

every spec i could find for grade 8 steel bolts
which is the real spec for demanding fastener applications
is not a specific alloy
but just that the material have a minimum tensile strength of 150 ksi
which is higher than the tensile strength for the ti alloy you linked

dont get me wrong
i think ti is great
my ti mtb frame is the longest lasting
and best riding
bicycle i have ever owned

but because there are steel alloys with higher strength for a given cross sectional area
than any ti alloy you can cherry pick to try to win an argument
in an application where the geometry cannot be changed
like with a bolt
then steel can make the stronger part